Manchester United have stolen a march on Aston Villa and Swansea City to bring in Mason Holgate on trial, report The Sun.
The Barnsley defender has one year remaining on his contract, with the Tykes permitting him to train with the Red Devils with a view to a move.
The Sun report Holgate, 18, is training with the remaining members of United's squad, with the first team having flown out on the club's US tour.
It would therefore be under-21 coach Warren Joyce rather than Louis van Gaal running the rule over the player.
The Sun had reported a day earlier that Swansea City had joined the race for Holgate's signature.
Aston Villa were most strongly linked previously, even believed to be close to tying up a deal. The Mail reported early this week how they were keen to sign the right-back and were weighing up a £1 million offer.
The Birmingham Mail reported at the weekend how Holgate had rejected a new deal at Barnsley, and the League One side now appear content to get a big fee for his services.
The 18-year-old established himself in Barnsley's first team last season, making 22 appearances and scoring once.
The right-back can also play at centre-back, but would become a replacement for Saidy Janko at Old Trafford, recently sold to Celtic, if his trial is successful.